pytest 8.2.2 fails assertion

[marcoep]

Discovered while testing LabExT with pytest 8.2.2. We do integration testing of a TKinter GUI as part of our CI. A particularly long test fails with an assertion error when using pytest=8.2.2 instead of an older version. The assertion error is raised possibly because of the change in #12368. I can't reproduce the error locally on my windows machine, however when pinning pytest's version to <8.2.2, this assertion is not triggered and our CI succeeds.

Console output from the CI run here: bug_reports.txt, error triggered is:

  self = <TestCaseFunction test_mainwindow_repeated_IL_sweep>
      def runtest(self) -> None:
          from _pytest.debugging import maybe_wrap_pytest_function_for_tracing
      
          testcase = self.instance
  >       assert testcase is not None
  E       AssertionError
  .tox/py310-mwint/lib/python3.10/site-packages/_pytest/unittest.py:319: AssertionError

Python env (tox outputs the pip freeze, not pip list):

Babel==2.14.0
bidict==0.23.1
certifi==2024.2.2
charset-normalizer==3.3.2
click==8.1.7
collision==1.2.2
colorama==0.4.6
contourpy==1.2.0
cycler==0.12.1
exceptiongroup==1.2.1
fonttools==4.49.0
ghp-import==2.1.0
griffe==0.42.0
h5py==3.10.0
idna==3.6
importlib_metadata==7.0.2
importlib_resources==6.1.3
iniconfig==2.0.0
Jinja2==3.1.3
kiwisolver==1.4.5
LabExT_pkg @ file:///home/runner/work/LabExT/LabExT/.tox/.tmp/package/4/labext_pkg-2.3.0.tar.gz#sha256=adab0666260601cb92a80e42cfc5a4b5c35c944d75742b8252b5b7fff29eba39
Markdown==3.5.2
MarkupSafe==2.1.5
matplotlib==3.8.3
mergedeep==1.3.4
mkdocs==1.5.3
mkdocs-autorefs==1.0.1
mkdocs-material==9.5.13
mkdocs-material-extensions==1.3.1
mkdocstrings==0.24.1
mkdocstrings-python==1.8.0
numpy==1.26.4
packaging==24.0
paginate==0.5.6
pandas==2.2.1
parameterized==0.9.0
pathspec==0.12.1
pillow==10.2.0
pip==24.0
platformdirs==4.2.0
pluggy==1.5.0
Pygments==2.17.2
pymdown-extensions==10.7.1
pyparsing==3.1.2
pyserial==3.5
pytest==8.2.2
pytest-rerunfailures==14.0
pytest-xv

We're using: Python 3.10.14, pytest-8.2.2, pluggy-1.5.0 and pytest plugins rerunfailures-14.0, xvfb-3.0.0. OS is whatever GitHub CI installs on 'ubuntu-latest'.

• a detailed description of the bug or problem you are having
• output of pip list from the virtual environment you are using
• pytest and operating system versions
• minimal example if possible

[bluetech]

Thanks for the report, we have fixed this issue yesterday and it will be included in the next release.

[hugobarthelemy]

Thanks for the report @marcoep . We have the same issue.
Do you know @bluetech when it's release please?
Thanks for your help on this great project!